DE50210889D1 - INJECTION MOLDING MACHINE AND INJECTION MOLDING METHOD FOR PRODUCING SEWNED SHAPED PARTS - Google Patents

INJECTION MOLDING MACHINE AND INJECTION MOLDING METHOD FOR PRODUCING SEWNED SHAPED PARTS

Info

Publication number
DE50210889D1
DE50210889D1 DE50210889T DE50210889T DE50210889D1 DE 50210889 D1 DE50210889 D1 DE 50210889D1 DE 50210889 T DE50210889 T DE 50210889T DE 50210889 T DE50210889 T DE 50210889T DE 50210889 D1 DE50210889 D1 DE 50210889D1
Authority
DE
Germany
Prior art keywords
injection molding
porous
sewned
blowing agent
producing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE50210889T
Other languages
German (de)
Inventor
Sasan Habibi-Naini
Oliver Pfannschmidt
Christian Schlummer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMP Deutschland GmbH
Original Assignee
Peguform GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peguform GmbH filed Critical Peguform GmbH
Application granted granted Critical
Publication of DE50210889D1 publication Critical patent/DE50210889D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • B29C44/3446—Feeding the blowing agent
    • B29C44/3449—Feeding the blowing agent through the screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • B29C44/3446—Feeding the blowing agent

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The porous or permeable section(16) of the plasticizing screw(3) lies downstream from the metering zone and is fed with blowing agent via a feed system(18) entering the screw shaft. A Blowing agent spreads throughout the porous section to enter a broad surface area of melt. An Independent claim is made for an injection molding process for production of foamed products in which blowing agent enters the plasticized melt over a broad area via a porous or permeable section(16) of the screw and the homogenized mixture is injected into a mold.
DE50210889T 2001-05-11 2002-05-10 INJECTION MOLDING MACHINE AND INJECTION MOLDING METHOD FOR PRODUCING SEWNED SHAPED PARTS Expired - Lifetime DE50210889D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01111504A EP1256430A1 (en) 2001-05-11 2001-05-11 Apparatus and method for for injection moulding of foamed article
PCT/EP2002/005142 WO2002092314A1 (en) 2001-05-11 2002-05-10 Injection molding machine and injection molding method for producing foamed shaped parts

Publications (1)

Publication Number Publication Date
DE50210889D1 true DE50210889D1 (en) 2007-10-25

Family

ID=8177390

Family Applications (1)

Application Number Title Priority Date Filing Date
DE50210889T Expired - Lifetime DE50210889D1 (en) 2001-05-11 2002-05-10 INJECTION MOLDING MACHINE AND INJECTION MOLDING METHOD FOR PRODUCING SEWNED SHAPED PARTS

Country Status (6)

Country Link
US (1) US7198748B2 (en)
EP (2) EP1256430A1 (en)
AT (1) ATE372864T1 (en)
DE (1) DE50210889D1 (en)
ES (1) ES2290314T3 (en)
WO (2) WO2002092313A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10249314B3 (en) * 2002-10-22 2004-04-15 Peguform Gmbh & Co. Kg I.Ins. Injection molding machine, to produce shaped foam bodies, has a screw piston within the injection cylinder to take the physical foaming agent feed near the metering zone
DE602005009118D1 (en) * 2004-12-28 2008-10-02 Everfocus Worldwide Co Ltd Apparatus and method for controlling the nucleation of microscopic bubbles in the manufacture of liquid polymeric materials
TWI382918B (en) * 2005-04-19 2013-01-21 Sulzer Chemtech Ag Uses of a method for the manufacture of foamed shaped polymer parts of liquid silicone rubber
TW200829409A (en) * 2006-08-23 2008-07-16 Sulzer Chemtech Ag A method for the manufacture of a moulding composition
ATE468958T1 (en) * 2006-12-14 2010-06-15 Sulzer Chemtech Ag POROUS DOSING ELEMENT WITH COATING
CN102514162A (en) * 2011-12-08 2012-06-27 浙江华业塑料机械有限公司 Screw used for injection machine
US10071863B2 (en) * 2013-03-15 2018-09-11 Mark E. Koenig Method for processing material for a gasifier
CN104842529A (en) * 2015-05-07 2015-08-19 浙江海洋学院 Micro-foaming screw capable of detecting material state
WO2020060982A1 (en) * 2018-09-17 2020-03-26 Trexel, Inc. Polymeric foam processing systems and methods
CN110815699A (en) * 2019-06-05 2020-02-21 杭州巨星科技股份有限公司 Micro-foaming injection molding process
CN111823535B (en) * 2020-07-13 2022-12-13 青岛科技大学 Supercritical fluid micro-foaming screw mixing device and method
CN112297326B (en) * 2020-10-21 2022-05-20 哈尔滨石油学院 Polyurethane foaming grouting preparation device and method for concrete engineering in cold region
CN113977844B (en) * 2021-08-09 2023-07-28 泰瑞机器股份有限公司 Gas injection device of micro-foaming injection molding machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792839A (en) 1971-08-23 1974-02-19 Polysar Ltd Device for the injection of fluid foaming agents into plasticized polymeric material
US3972970A (en) * 1974-02-07 1976-08-03 Western Electric Company, Inc. Method for extruding cellular thermoplastic products
DD125478A5 (en) * 1974-12-11 1977-04-20
US4357025A (en) * 1980-06-09 1982-11-02 General Motors Corporation Regenerator seal design
CA2015639C (en) 1990-04-27 1993-08-10 Changize Sadr Process and apparatus for molding foamed plastic article
JP3469270B2 (en) * 1993-06-01 2003-11-25 三菱電線工業株式会社 Extruder
ATE272482T1 (en) 1997-01-16 2004-08-15 Trexel Inc INJECTION MOLDING OF MICROCELLULAR MATERIAL
DE19853021B4 (en) 1998-11-18 2006-02-23 Vereinigung zur Förderung des Instituts für Kunststoffverarbeitung in Industrie und Handwerk an der Rhein.-Westf. Technischen Hochschule Aachen eV Device for producing foamed plastic molded parts by introducing a physical blowing agent into the melt stream of a conventional injection molding machine
DE19934693C2 (en) * 1999-07-23 2002-03-07 Fraunhofer Ges Forschung Method and device for producing polymer foams

Also Published As

Publication number Publication date
EP1387751A1 (en) 2004-02-11
ATE372864T1 (en) 2007-09-15
US7198748B2 (en) 2007-04-03
EP1387751B1 (en) 2007-09-12
US20040145074A1 (en) 2004-07-29
ES2290314T3 (en) 2008-02-16
WO2002092314A1 (en) 2002-11-21
WO2002092313A1 (en) 2002-11-21
EP1256430A1 (en) 2002-11-13

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Legal Events

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